Open-Source Network Simulation Tools: An Overview

In the network research area, implementation of a whole network in real world is not easily possible because establishing of network in a real world is very difficult. A single test bed containing multiple networked computers, routers and data links to validate and verify a certain network protocol or a specific network algorithm that needed a large amount of time and cost. The simulator helps the network developer to check whether the network is able to work in the real world. Thus both the time and cost of testing the functionality of the network have been reduced and implementations are made easy.